Temporal and Spatial Behavior of Electron Density and Temperature in a Laser-Produced Plasma from YBa2 Cu3 O7
نویسندگان
چکیده
Spectroscop ic studies of laser -induced p lasm a from a high -temperature superconducting mater ial, v iz., YBa2Cu 3O7 (YBCO), have been carried out. Electron temperature and electron density measurements were made from spectral data. The Stark broadening of emission lin es was used to determ ine the electron density, an d the ratio of line in tensities was exploited for the determ ination of electron temperature. An in itial electron temperature of 2.35 eV and electron density of 2.5 3 10 cm 2 3 were observed. The dependence on electron temperature and density on different exper imental parameters such as distance from the target, delay time after the in itiation of the plasm a, and laser irrad iance is also discussed in d etail.
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